Open AccessSatellite‐Observed Major Greening and Biomass Increase in South China Karst During Recent Decade
Author(s) -
Brandt Martin,
Yue Yuemin,
Wigneron Jean Pierre,
Tong Xiaowei,
Tian Feng,
Jepsen Martin Rudbeck,
Xiao Xiangming,
Verger Aleixandre,
Mialon Arnaud,
AlYaari Amen,
Wang Kelin,
Fensholt Rasmus
Publication year - 2018
Publication title -
earth's future
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.641
H-Index - 39
ISSN - 2328-4277
DOI - 10.1029/2018ef000890
Subject(s) - environmental science , vegetation (pathology) , biomass (ecology) , ecosystem services , karst , deforestation (computer science) , ecosystem , carbon sequestration , carbon sink , climate change , geography , agroforestry , environmental protection , ecology , carbon dioxide , medicine , archaeology , pathology , computer science , biology , programming language
Abstract Above‐ground vegetation biomass is one of the major carbon sinks and provides both provisioning (e.g., forestry products) and regulating ecosystem services (by sequestering carbon). Continuing deforestation and climate change threaten this natural resource but can effectively be countered by national conservation policies. Here we present time series (1999–2017) derived from complementary satellite systems to describe a phenomenon of global significance: the greening of South China Karst. We find a major increase in growing season vegetation cover from 69% in 1999 to 81% in 2017 occurring over ~1.4 million km 2 . Over 1999–2012, we report one of the globally largest increases in biomass to occur in the South China Karst region (on average +4% over 0.9 million km 2 ), which accounts for ~5% of the global areas characterized with increases in biomass. These increases in southern China's vegetation have occurred despite a decline in rainfall (−8%) and soil moisture (−5%) between 1999 and 2012 and are derived from effects of forestry and conservation activities at an unprecedented spatial scale in human history (~20,000 km 2 yr −1 since 2002). These findings have major implications for the provisioning of ecosystem services not only for the Chinese karst ecosystem (e.g., carbon storage, water filtration, and timber production) but also for the study of global carbon cycles.